<script>

import MyHeader from "./components/MyHeader.vue";
import MyList from "./components/MyList.vue";
import MyFooter from "./components/MyFooter.vue";
import pubsub from 'pubsub-js'

export default {
  name: 'App',
  components: {MyHeader,MyList,MyFooter},
  data(){
    return{
      todoList:[
        {id:1, content:'吃饭', done:true},
        {id:2, content:'睡觉', done:false},
        {id:3, content:'打豆豆', done:true},
        {id:4, content:'敲代码', done:false},
      ]
    }
  },
  methods:{
    add(val){
      this.todoList.unshift(val)
    },
    checkTodo(id){
      this.todoList.forEach(item=>{
        if(item.id === id){
          item.done = !item.done
        }
      })
    },
    delTodo(id){
      this.todoList = this.todoList.filter(item=>{
        return item.id !== id
      })
    },

    checkAllTodo(done){
      this.todoList.forEach(todo => {
          todo.done = done
      })
    },
    clearDoneTodo(){
      this.todoList = this.todoList.filter(item=>{
        return !item.done
      })
    }
  },
  mounted() {
    this.$bus.$on("checkTodo", this.checkTodo);
    this.puId = pubsub.subscribe("deleteTodo", (_, id) => {
      this.delTodo(id);
    });
  },
  beforeDestroy() {
    this.$bus.$off("checkTodo", this.checkTodo);
    pubsub.unsubscribe(this.puId)
  }
}
</script>

<template>
  <div>
    <div class="todo-container">
      <div class=todo-wrap>
        <MyHeader @add="add"></MyHeader>
        <MyList :todoList="todoList">
        </MyList>
        <MyFooter :todoList="todoList"
                  @checkAllTodo = "checkAllTodo"
                  @clearDoneTodo = "clearDoneTodo"></MyFooter>
      </div>
    </div>
  </div>
</template>
<style>
body {
  background: #fff;
}
.btu {
  display: inline-block;
  padding: 4px 12px;
  margin-bottom: 0;
  font-size: 14px;
  line-height: 20px;
  text-align: center;
  vertical-align: middle;
  cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 2px 0 rgba(0, 0, 0, 0.05);
  border-radius: 4px;
}
.btn-danger {
  color: #fff;
  background-color: #da4f49;
  border: 1px solid #bd362f;
}

.btn-danger:hover {
  color: #fff;
  background-color: #bd362f;
}

.btn:focus {
  outline: none;
}

.todo-container {
  width: 600px;
  margin: 0 auto;
}

.todo-container .todo-wrap {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}
</style>
